Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-for-free
Paul Wouters <paul@nohats.ca> Tue, 22 March 2016 01:14 UTC
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Date: Mon, 21 Mar 2016 21:14:00 -0400
From: Paul Wouters <paul@nohats.ca>
To: Marek Vavruša <mvavrusa@cloudflare.com>
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Subject: Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-for-free
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On Mon, 21 Mar 2016, Marek Vavruša wrote: > What happens with the Answer Count for QTYPE=A when there are no A > records and only AAAA records? And can the examples also clarify this? > > That's an example 5.3 The use case is, but I still have no idea what the ANCOUNT should be. Neither the text nor the example list the ANCOUNT. I can only assume based on the fact that the AAAA is placed in the answer section, that you would have ANCOUNT=1. I think that is wrong. I think ANCOUNT should be 0, and the AAAA record should be in the additional section. > The proposal is opt-in, if the authoritative decides to throw in AAAA addresses > then client should accept them. If it doesn't then it should requery. This is of course > going to reduce the effectiveness in the transition period for names that have A, but don't have AAAA > which is something I expect to change. And I would assume QTYPE=AAAA with additional A records would become the more common query. At least I hope we are still trying to transition to IPv6 :) > The rationale is not to carry unnecessary payload when most authoritatives support it, but you make a good point > that it might be better to mandate denial of non-existence proof now, and amend the draft later. If you want to do it your way, you need to add some signalling so the client knows what happened and it can decide whether or not to query again. I think it is important for the client to know whether the answer that came back came from a server supporting this document, as opposed to a server not supporting this document. > What is SNAME? Did you mean QNAME? > > SNAME as in RFC1034, either QNAME or CNAME chain terminal name. Oh thanks. a quick google didnt give me much :) Paul
- [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-for-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Mark Andrews
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Wouters
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Vixie
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Wouters
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Mark Andrews
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Mark Andrews
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Wouters
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Vixie
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… George Michaelson
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Vixie
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… George Michaelson
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Vixie
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Tony Finch
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Bob Harold
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Shumon Huque
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Mark Andrews
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Shane Kerr
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Mark Andrews
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Tony Finch
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Andrew Sullivan
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Andrew Sullivan
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Tony Finch
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Philip Homburg
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Ólafur Guðmundsson
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Joao Damas
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Florian Weimer
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Florian Weimer
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Andrew Sullivan
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Florian Weimer
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Darcy Kevin (FCA)
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Paul Wouters
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… George Michaelson
- [DNSOP] Stub resolvers and A+AAAA (was Introducin… Shane Kerr
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Andrew Sullivan
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… John Levine
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Marek Vavruša
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Ólafur Guðmundsson
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… John Levine
- Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-… Andrew Sullivan